Using my strategy from before:
Using the logarithm tables, we get $$\log_{10}(7.000)=0.8451\\\log_{10}(7.000^{100})=84.51\\7^{100}=10^{84}\cdot10^0.51\\7^{100}=3.236\cdot10^{84}$$$$\log_{10}(7.000)=0.8451\\\log_{10}(7.000^{100})=84.51\\7^{100}=10^{84}\cdot10^{0.51}\\7^{100}=3.236\cdot10^{84}$$.
